句型转换。

1. Let's go to the zoo together. (否定句)

_______________________________________________________________________

2. Turn on the radio. (用he做主语，改为一般将来时)

_______________________________________________________________________

3. I'm going to buy some beautiful flowers for my mother. (对划线部分提问)

_______________________________________________________________________

4. Nine people are coming to the party. (对划线部分提问)

_______________________________________________________________________

下列不需要激素冲击治疗的是（）

A.急进性狼疮肾炎

B.严重的狼疮脑病

C.严重的狼疮肺炎

D.严重的皮疹

E.严重的溶血性贫血